In San Francisco, "unfiltered, untreated, unsterilized spring water" from a company called Live Water is selling for up to $61 for a 2.5-gallon jug -- and it's flying off the shelves, The New York Times reported.

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People are gathering gallons of untreated water from natural springs, venturing out onto private property by night to get the water, according to The Times.

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The cost of a 2.5-gallon jug had increased to $61 from $37 since The Times published its article on Friday.

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Though fans of the untreated water are not backed by science, many told The Times they felt confident they were getting health benefits from drinking it.

For example, Mukhande Singh, the founder of Live Water, told the publication his startup's water expired after a few months -- something he said was normal for "real water."

"It stays most fresh within one lunar cycle of delivery," Singh said. "If it sits around too long, it'll turn green. People don't even realize that because all their water's dead, so they never see it turn green."